Driving device



Oct. 27,1925- ,5

J. H. POPE DRIVING bEvIcE Filed Oct. ,19

Fig. 2.

/NVENTUR.

Patented Oct. 27, 1925.

*YU'N T ED TATES PATENT E.

JOSEPH H. Porn, or HAMILTON, mssncrrusnrrs, .ASSIGNOR T0 UNITED sHo'EMA- crummy CORPORATION, JERSEY.

OFJEA TERSON, NEW JERSEY, A CORPORATION OF NEW a encatibh fiiedbcfeber1919; Serial No. 327,966,

To all whom it may concern: 3

Be it known that I, Josnrrr I-I. Porn, a

citizen of theIInit-ed States, residing at .lHaniilton, in the countyofEssex and State ofll/Iassachusetts, have invented certainImprovenrents in Driving Devices, of which the. following descr1pt1on,1nconnectlon wlth "theaccompanying drawings, is a specifica tion, likereference characters on the draw-f tion is so contracted that when nailsare driven fromtheheel-seat end," as is common in attaching Wood heels,parallel to the ,vertical axis of the heel, the points em e-rge from thesides, especially at therear, un-

less the nails are considerably removed from itheedge, in which casethe-reds a tendency for the work to gap atflthe rand crease; To

avoidthesedifiiculties, it is desiredni; this class of work to startthenails into the heels at an angle to the axis, they more or lessclosely paralleling the inclination f or the"- .sidesf This permits themto be ,broug-ht nearer to the edge of th'e'heel-seat, yet kept f withinthe body of the heel. To enable the nailing to be. performed in this1nanner,"an

., object of the invention is to '[furni sh afdriving device which'willact at an'angle to at which the drivingforce is applied. j

of sufficient flexibility tocliange its-inclination as it is guided inits driving action This flexible member, wh ch I have espefl -ciallydesigned for the insertion of na 1ls, 1s

preferably provided by a. helix. To. one extremity of the member I haveherein shown connected a rigid actuating member, and at the, other acontact member, by"Wl11Cl1- the Such an arrangement not a drivingeffect. One of these members, preferably the outer, may befiexible,be1ng in the present instance shown as furnished f In theacompa of, shoe heels, as the Louis, the central porby the helixpreviously mentioned; whilethe inner member includes rigid portionswhich maybearranged n'a SBIIBS, These rigid portions, or plugs, I preferto have transmit the driving thrust from the actu ating mam ber atoneend of the helix to the contact member: at the other end. With a driverthus organized, the innerandf outerlnembers give, mutual reinforcementand will flexibly transmit heavy. driving thrusts without distortion; Ir V nying drawing illustratmg a particular embodiment of my invenv Fig..l is a vertical section Ithroughthe work-support and driving mechanismof a heel-attaching machine; and e c Fig. 2 is a similar view, enlarged,through the upper portion of a driver. y

The numeral 10 designates a jack or worksupport for a shoe, indicated atS, which is ,to have its heel H attached by nailslN driven fromWithinthe shoe. In a-plate12 mounted at thetopof the jack are openings14: arranged.inaccordance with the positions which the nailsareto-occupy in the heels. Throughthese openings and below 1 the plateextend guide tubes to receive drivers operating upon the nails. Eachtube ineludes afportion l6 located in one ofthe open ngs 14, thisIpOrtinfbeing, inclined from the vertical in the directiongin which thenailsaretoenter the heel, and a portion V J e V p l8gdep ending verticallybelow the' plate, I In accomplishing this purpose, a feature H .of theinvention resides In a driving member these parts 16 and 18, beingconnected by a thnead, indicated .atIQO. Rising vertically from theusual reciprocatory driver plate'fas illustratedin the patent toStandish, dated Juiie18,l91 8,QNo. 1,269,654pare driver rods 22 enterilgthe, guide, tube portions 18.

Each driver red at its upper end has a re- 1;1cect; qru0n{ 2e, andsurrounding this, preferably sweated to it. and resting upon theshoulderbetween the main and reduced portions, is a helical spring26 of suchlength thattit'jextends near the upper portion 18 of the tube,Theexternal diameter of the spring approximates theinternal diameter ofthe tube portion 18, it fitting so that it will move readily in the tubewithout lateral outer members actingtogether tolproduce play;' Theconvolutions for the helix are P rab y es l pl c rth r e n i tua lor"substantial contact. At the upper extremity the spring 26 carriesaplug, which may have at its loWer portion a stem 28, this being alsopreferably sv'v'eatied to the spring, and above this a disk-shaped head30 resting upon the top of the spring with its edge close to theinterior wall of the guide tube. Between the rod and the contact plug isan alined series of relatively short plugs or thrust members 32, theseextending in practicallyunbroken contactbetween the reduced portion 240ithe'rod and the stem 28 of the terminalplug, they fitting closely'W'ithin the'cylindrica'l interior of the spring, .Tlie adjacent ends orthe plugs and also the inner ends of the rods and .theterminal plugstems are preferably rounded, as is shown at 34, perinittiiigtheelements to rock easily upbn one another, Without tilting Wholly uponone edge itha teiidency to Widely separatetheoppOsite edge. The nailsare suppliedto the driving devices by inserting 'tliem the portions 16of the guide tubes, their heads resting upon the contactheads 3O ofthedrivers. As the latter risein thetlriving action and emerge from thetube portions 18 into. the inclined portions 16,,tlie springs, onaccount of their great flexibility, turn at the junctures of theportionswithout binding; While the change of direction 'of novementofjth e plugs 32 is facilitated both by the rounded contour of theirend'sfa'nd byftheslight 'entranee of the edges of these'endsbe'tiveenthe" convolutionsof t-he springs though theyare efiectivelyheld against material lateral displace ment, Then the 'n'ailpoiiit's'reach the heel,

the driving effect necessary;to thru'st'them through the s'ole into theheel may be transmitted fro'mthe rods both plugs and springs, thoughpreferably chiefly through the former; They drive theinails into the hlfa a gles de ermi ythe i'n l iiat e or thetuibe portions "16, thejdiftrs t ar Withdrawn after jcompleting jtlie inserjtion 'of1the, nails,any tendency for 'thefplugs toistickis counteracted by thesprin'g,which, through the terminal plug, positively 1 moves the entire plugseries to their normal positions, I I I II I I I fi vi slides ed my iient wha I c'laim'as new and desire to secure by Letters Patent of'theUnited States is:

I. In a" machine of the'classde scribed, a

member having aguide passagefivith portions inclined With respect t'o one 'another,

- and a: unitary flexible driving member movable 1n the passage and bendng in ts, passage from one inclined portion to another, I

I I 2., In a machinelofi the class described, a

driving device comprising a helical rjr'ierhber arranged to transmitthefdriving' impact in a direction inclined to the direction ofapplication of such impact, I II 3. In' almachilnefof the classdescribed, a driving device comprising a helical member, a member forContact with the work situated at one extremity of the helix, and anactuating member connectedat'the other extremity of the helix, thecontact member and actuating member being separated and arranged topermit the helix tobend laterally.

4. In a machine of the class described, a member having a guide passagewith portions inclined With respect toone another, a rigid actuatingmember situated in one 5mm of the passage, and a unitary flexible memberconnected to the rigid member and being movable into another portion ofthe passage. I I

5. In a machine of theclass described, a

driving device comprising an inner and an outer member actingsimultaneously 'up'on a memberand in which it is arranged to"reciprocate.

8 In a machineof the classdescrib'ed, a driving device comprisingflexible cylindricaljmember and a series of "contacting Qrigid membersWithin said cylindrical" member, and "a tube inwhi'ch the flexiblemember is movable. I I

9. In a' achi ne o'r the cl'a ss'describedfa driving device comprising'ahelical m'eniber, and a seriesof thrust members situatedavith- "inthehelixandsupported laterally thereby. 10.;Ini jnad1ine for the class-described, faidriyingjdevice comprising a r'esilie itjheli- 'calmember;andfafseries of I alined' members situated Within the helix, bothsaidhelix and the inner members being arranged to transmit the drivingforce.

I '11. In a machine of thetlas'sdscribd, a driving device comprising a lelical mem- 'ber, and a series of" alined thrust "members situatedWithin thehelix andhavingadjacent curved extremities contacting'to transvmit'the thrust.

12. In a machine of the class described, a drivingdevice comprisingaheli'c'al spring, and 'aI'seri es'or thrust members situated Withinthe' spring. I I I 1 I I3. Inajmachine of'the 'class described, adriving device. comprising a helical spring, and I 'a series For thrustj members situated within the' spring, a portion of tlie members beingsecured to the spring.

14:. In a "machine of the class deseribed, a' driving device comprisingaheli'c'al' spring, and a series of thrust members situated within thespring, the terminal members of the series being secured to the spring.

15. In a machine of the class described, a driving device comprising arod, and a fiexible member secured to the rod and arranged to receiveand transmit longitudinally the driving force.

' 16. In a heel-attaching machine, a naildriver comprising a rod, and ahelical spring secured to the rod and arranged to transmit the drivingforce longitudinally of the rod and from it to the object to be driven.

17. I11 a heel-attaching machine, a naildriver comprising a rod, ahelical spring secured at one end to the rod, and a plug secured to theopposite end of the spring, the spring co-operating with the rod andplug to transmit the driving force.

18. In a heel-attaching machine, a naildriver comprising a rod, ahelical spring secured at one end to the rod, a plug secured to theopposite end of the spring, and a series of plugs between the terminalplug and rod.

19. In a machine of the class described, a driving device comprising arod, a helical spring secured at one end to the rod, a plug secured tothe opposite end of the spring, and a series of plugs having contactingrounded ends and situated between the ter minal plug and rod.

20. In a machine of the class described, a driving device comprising ahelicalspring, and a member having a stem within the spring and a headextending over the end of the spring and contacting with the work toapply the driving pressure.

21. In a machine of the class described, a driving device comprising arod having a reduced portion, a helical spring surrounding the reducedportion, and a terminal member having a stem Within the spring at theopposite extremity from the rod and a head extending over the end of thespring and arranged to transmit the driving force.

22. In a machine of the class described, a driving device comprising arod having a reduced portion, a helical spring surrounding the reducedportion and terminating thereat, a terminal member having a stem withinthe spring at the opposite extremity from the rod and a head extendingover the end of the spring, and a series of plugs lying between the rodand terminal member.

In testimony whereof I have signed my name to this specification.

JOSEPH H. POPE.

